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  <title>Import a PHP array in a SplFixedArray instance</title>
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  <div id="layout-content"><div id="splfixedarray.fromarray" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">SplFixedArray::fromArray</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.3.0, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">SplFixedArray::fromArray</span> &mdash; <span class="dc-title">Import a PHP array in a <span class="classname"><a href="class.splfixedarray.html" class="classname">SplFixedArray</a></span> instance</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-splfixedarray.fromarray-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="modifier">static</span> <span class="methodname"><strong>SplFixedArray::fromArray</strong></span>(<span class="methodparam"><span class="type">array</span> <code class="parameter">$array</code></span>, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$preserveKeys</code><span class="initializer"> = <strong><code>true</code></strong></span></span>): <span class="type"><a href="class.splfixedarray.html" class="type SplFixedArray">SplFixedArray</a></span></div>

  <p class="para rdfs-comment">
   Import the PHP array <code class="parameter">array</code> 
   in a new <span class="classname"><a href="class.splfixedarray.html" class="classname">SplFixedArray</a></span> instance
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-splfixedarray.fromarray-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
    
     <dt>
<code class="parameter">array</code></dt>

     <dd>

      <p class="para">
       The array to import.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">preserveKeys</code></dt>

     <dd>

      <p class="para">
       Try to save the numeric indexes used in the original array. 
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-splfixedarray.fromarray-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns an instance of <span class="classname"><a href="class.splfixedarray.html" class="classname">SplFixedArray</a></span> 
   containing the array content.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-splfixedarray.fromarray-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-3548">
    <p><strong>示例 #1 <span class="function"><strong>SplFixedArray::fromArray()</strong></span> example</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$fa&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">SplFixedArray</span><span style="color: #007700">::</span><span style="color: #0000BB">fromArray</span><span style="color: #007700">(array(</span><span style="color: #0000BB">1&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #0000BB">1</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #0000BB">2</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">3&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #0000BB">3</span><span style="color: #007700">));<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$fa</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$fa&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">SplFixedArray</span><span style="color: #007700">::</span><span style="color: #0000BB">fromArray</span><span style="color: #007700">(array(</span><span style="color: #0000BB">1&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #0000BB">1</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">0&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #0000BB">2</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">3&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #0000BB">3</span><span style="color: #007700">),&nbsp;</span><span style="color: #0000BB">false</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$fa</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>以上例程会输出：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
object(SplFixedArray)#1 (4) {
  [0]=&gt;
  int(2)
  [1]=&gt;
  int(1)
  [2]=&gt;
  NULL
  [3]=&gt;
  int(3)
}
object(SplFixedArray)#2 (3) {
  [0]=&gt;
  int(1)
  [1]=&gt;
  int(2)
  [2]=&gt;
  int(3)
}
</pre></div>
    </div>
   </div>
  </p>
 </div>


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